﻿using System;
using System.Web;
using System.Data;
using System.Data.Common;

using Discuz.Common;
using Discuz.Forum;
using Discuz.Config;
using Discuz.Entity;
using Discuz.Web.UI;

namespace Discuz.Web.Archiver
{
	/// <summary>
	/// ShowTopic 的摘要说明。
	/// </summary>
	public class showtopic : ArchiverPage
	{
        public Discuz.Common.Generic.List<ShowtopicPageAttachmentInfo> attachmentlist = new Discuz.Common.Generic.List<ShowtopicPageAttachmentInfo>() ;
        public Discuz.Common.Generic.List<ShowtopicPagePostInfo> postlist = new Discuz.Common.Generic.List<ShowtopicPagePostInfo>();  
              
        public showtopic()
		{
			// 获取主题ID
			int topicid = DNTRequest.GetInt("topicid", -1);
			// 如果主题ID非数字
			if(topicid == -1)
			{
				ShowMsg("无效的主题ID");
				return;
			}

			// 获取该主题的信息
			TopicInfo topic = Topics.GetTopicInfo(topicid);
			// 如果该主题不存在
			if(topic == null)
			{
				ShowMsg("不存在的主题ID");
				return;
			}

			if(topic.Readperm > usergroupinfo.Readaccess  && topic.Posterid != userid)
			{
				ShowMsg(string.Format("本主题阅读权限为: {0}, 您当前的身份 \"{1}\" 阅读权限不够", topic.Readperm, usergroupinfo.Grouptitle));
				return;
			}

			ForumInfo forum = Forums.GetForumInfo(topic.Fid);
			if (Utils.StrIsNullOrEmpty(forum.Viewperm))//当板块权限为空时，按照用户组权限
			{
				if (usergroupinfo.Allowvisit != 1)
				{
					ShowMsg("您当前的身份 \"" + usergroupinfo.Grouptitle + "\" 没有浏览该版块的权限");
					return;
				}
			}
			else//当板块权限不为空，按照板块权限
			{
				if (!Forums.AllowView(forum.Viewperm, usergroupinfo.Groupid))
				{
					ShowMsg("您没有浏览该版块的权限");
					return;
				}
			}

			if (forum.Password != "")
			{
				ShowMsg("简洁版本无法浏览设置了密码的版块");
				return;
			}

			//验证用户是否为本版版主
			int ismoder = Moderators.IsModer(useradminid, userid, forum.Fid) ? 1 : 0;

			//购买帖子操作
			//判断是否为回复可见帖, price=0为非购买可见(正常), price>0 为购买可见, price=-1为购买可见但当前用户已购买
			int price = 0;
			if (topic.Price > 0 && userid != topic.Posterid && ismoder!=1)
			{
				price = topic.Price;
				//时间乘以-1是因为当Configs.GetMaxChargeSpan()==0时,帖子始终为购买帖
                if (PaymentLogs.IsBuyer(topicid, userid) || (Utils.StrDateDiffHours(topic.Postdatetime, Scoresets.GetMaxChargeSpan()) > 0 && Scoresets.GetMaxChargeSpan() != 0))//判断当前用户是否已经购买
				{
					price = -1;
				}
			}
			if (price > 0)
			{
				ShowMsg(string.Format("此帖需转到完整版处购买后才可查看.<a href=\"{0}buytopic.aspx?topicid={1}\">点击购买</a>", BaseConfigs.GetForumPath, topic.Tid));
				return;
			}


			// 获取帖子总数
			int postcount = topic.Replies + 1;
			int pageid = 1;

			// 得到Tpp设置
			int ppp = 30;

			//获取总页数
			int pagecount = postcount%ppp==0 ? postcount/ppp : postcount/ppp + 1;
			if (pagecount == 0)
				pagecount = 1;

            // 得到当前用户请求的页数
			if (DNTRequest.GetString("page").ToLower().Equals("end"))
				pageid = pagecount;
			else
				pageid = DNTRequest.GetInt("page", 1);

			//修正请求页数中可能的错误
			if (pageid < 1)
				pageid = 1;

            if (pageid > pagecount)
				pageid = pagecount;

			int hide = 1;
			if (topic.Hide == 1 && (Posts.IsReplier(topicid, userid) || ismoder == 1))
				hide = -1;

			//获取当前页主题列表
			PostpramsInfo postpramsInfo = new PostpramsInfo();
			postpramsInfo.Fid = forum.Fid;
			postpramsInfo.Tid = topicid;
			postpramsInfo.Jammer = forum.Jammer;
			postpramsInfo.Pagesize = ppp;
			postpramsInfo.Pageindex = pageid;
			postpramsInfo.Getattachperm = forum.Getattachperm;
			postpramsInfo.Usergroupid = usergroupinfo.Groupid;
			postpramsInfo.Attachimgpost = config.Attachimgpost;
			postpramsInfo.Showattachmentpath = config.Showattachmentpath;
			postpramsInfo.Hide = hide;
			postpramsInfo.Price = topic.Price;
			postpramsInfo.Usergroupreadaccess = usergroupinfo.Readaccess;
			postpramsInfo.CurrentUserid = userid;
			postpramsInfo.Showimages = forum.Allowimgcode;
			// 简洁版本中关闭表情符的解析
			postpramsInfo.Smileyoff = 1;
			postpramsInfo.Smiliesmax = 0;
			postpramsInfo.Smiliesinfo = null;
			postpramsInfo.Customeditorbuttoninfo = null;
			postpramsInfo.Bbcodemode = 0;
			// 简洁版本中关闭ubb转换
			postpramsInfo.Bbcodeoff = 1;
			postpramsInfo.CurrentUserGroup = usergroupinfo;
			postpramsInfo.Onlinetimeout = config.Onlinetimeout;

            postlist = Posts.GetPostList(postpramsInfo, out attachmentlist, ismoder == 1);
            if (postlist.Count <= 0)
			{
				ShowMsg("读取信息失败");
				return;
			}

			ShowTitle(topic.Title);
			ShowBody();
			HttpContext.Current.Response.Write("<h1>" + config.Forumtitle + "</h1>");
			HttpContext.Current.Response.Write("<div class=\"forumnav\">");
			HttpContext.Current.Response.Write("<a href=\"index.aspx\">首页</a> &raquo; ");

            if (config.Aspxrewrite == 1)
                HttpContext.Current.Response.Write(string.Format("{0} &raquo; <a href=\"showtopic-{1}{2}\">{3}</a>", ForumUtils.UpdatePathListExtname(forum.Pathlist.Trim(), config.Extname).Replace("</a><", "</a> &raquo; <"), topicid.ToString(), config.Extname, topic.Title));
            else
                HttpContext.Current.Response.Write(string.Format("{0} &raquo; <a href=\"showtopic.aspx?topicid={1}\">{2}</a>", ForumUtils.UpdatePathListExtname(forum.Pathlist.Trim(), "aspx").Replace("</a><", "</a> &raquo; <"), topicid.ToString(), topic.Title));

            HttpContext.Current.Response.Write("</div>\r\n");

            foreach (ShowtopicPagePostInfo postinfo in postlist)
			{
				HttpContext.Current.Response.Write("<div class=\"postitem\">\r\n");
				HttpContext.Current.Response.Write("\t<div class=\"postitemtitle\">\r\n");
                HttpContext.Current.Response.Write(Utils.HtmlEncode(postinfo.Poster) + " - " + postinfo.Postdatetime);
				HttpContext.Current.Response.Write("</div><div class=\"postitemcontent\">");
                HttpContext.Current.Response.Write(postinfo.Message);
                foreach (ShowtopicPageAttachmentInfo attinfo in attachmentlist)
				{
                    if (attinfo.Pid == postinfo.Pid)
					{
                        HttpContext.Current.Response.Write(string.Format("<br /><br />附件: <a href=\"../attachment.aspx?attachmentid={0}\">{1}</a>", attinfo.Aid, Utils.HtmlEncode(attinfo.Attachment)));
					}
				}
				HttpContext.Current.Response.Write("\t</div>\r\n</div>\r\n");
			}
			//得到页码链接
			HttpContext.Current.Response.Write("<div class=\"pagenumbers\">");

            if (config.Aspxrewrite == 1)
                HttpContext.Current.Response.Write(Utils.GetStaticPageNumbers(pageid, pagecount, "showtopic-" + topicid, config.Extname, 8));
            else
                HttpContext.Current.Response.Write(Utils.GetPageNumbers(pageid, pagecount, "showtopic.aspx?topicid=" + topicid, 8, "page"));

            HttpContext.Current.Response.Write("</div>\r\n");
			//更新查看次数
			TopicStats.Track(topicid, 1);

            if (config.Aspxrewrite == 1)
                HttpContext.Current.Response.Write(string.Format("<div class=\"fullversion\">查看完整版本: <a href=\"../showtopic-{0}{1}\">{2}</a></div>\r\n", topicid, config.Extname, topic.Title));
            else
                HttpContext.Current.Response.Write(string.Format("<div class=\"fullversion\">查看完整版本: <a href=\"../showtopic.aspx?topicid={0}\">{1}</a></div>\r\n", topicid, topic.Title));

            ShowFooter();
			HttpContext.Current.Response.End();
		}
	}
}
